Basic DLL

I meant by the "pointer changes" is if it no longer points to the right address or it shows "???". Also sometimes pointers would work on your computer but on others they will not work.

The location of the DLL is inside the project files. Also you need to change a few thing in the project setting.
First change from Debug to Release. After this go to project properties -> Configuration Properties -> Character Set - "Not Set".

Additionally, it is better to make a blank project and add the files yourself. That way junk code will not be added to your project.
If you ask how to do it:

Create blank C++ Project -> right click on Source Files -> Add - New Item > Then add a cpp extension file with the name main.
project properties -> Configuration Properties -> Configuration Type - .dll
right click on Source Files -> Add - New Item > Then add a DEF extension file with the name main.
He should have the content "LIBRARY" inside him.


With exe file you dont have to add DEF file.

About your second question, what you said happenes only to addresses or to bad pointers.
A good pointer will have few offsets(2 or 3, but 5 can also be) and only change after there is an update to the game.

To advanced users, there is a thing called "Signature Scanner"(Or "Memory Scanner") that after the game gets an update their hack will still work.

When you inject, do you hear a beep? If not then maybe you didn't compile it correctly.